The environmental awareness and regulations on coastal and marine areas are constantly increasing. Both private and public sectors are now basing many decisions, developments, public audits as well as communication approaches using environmental data.

Mapping coastal and marine environment is crucial in the general status assessment of a specific site and the sharp localisation of the environmental concerns. This important but technical practice requires sharp methodologies: lateral sonar, mono- and multi-beam depth, aerial or satellite photography, direct surveys through dives and/or boat videocameras, Remotely Operated Vehicle – ROV, samplings, etc.); collected data are very specific and require experience and good understanding in order to sort, assess, analyses and organise for a clear reporting effort.